package com.zzyl.nursing.service.impl;

import java.time.LocalDateTime;
import java.util.*;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.date.DatePattern;
import cn.hutool.core.date.LocalDateTimeUtil;
import cn.hutool.core.util.ObjectUtil;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.huaweicloud.sdk.iotda.v5.IoTDAClient;
import com.huaweicloud.sdk.iotda.v5.model.*;
import com.zzyl.common.constant.Constants;
import com.zzyl.common.core.domain.AjaxResult;
import com.zzyl.common.exception.base.BaseException;
import com.zzyl.common.utils.DateTimeZoneConverter;
import com.zzyl.common.utils.StringUtils;
import com.zzyl.common.utils.uuid.UUID;
import com.zzyl.framework.config.properties.HuaWeiIotConfigProperties;
import com.zzyl.nursing.dto.DeviceDto;
import com.zzyl.nursing.vo.DeviceDetailVo;
import com.zzyl.nursing.vo.ProductVo;
import com.zzyl.system.service.ISysUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import com.zzyl.nursing.mapper.DeviceMapper;
import com.zzyl.nursing.domain.Device;
import com.zzyl.nursing.service.IDeviceService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.transaction.annotation.Transactional;

/**
 * 智能设备Service业务层处理
 *
 * @author CHEN
 * @date 2025-08-01
 */
@Service
public class DeviceServiceImpl extends ServiceImpl<DeviceMapper, Device> implements IDeviceService {
    @Autowired
    private DeviceMapper deviceMapper;

    @Autowired
    private RedisTemplate<String, String> redisTemplate;

    @Autowired
    private IoTDAClient client;

    @Autowired
    private ISysUserService userService;

    @Autowired
    private HuaWeiIotConfigProperties huaWeiIotConfigProperties;


    /**
     * 查询智能设备列表
     *
     * @param device 智能设备
     * @return 智能设备
     */
    @Override
    public List<Device> selectDeviceList(Device device) {
        return deviceMapper.selectDeviceList(device);
    }


    /**
     * 同步产品列表
     */
    @Override
    public void syncProductList() {
        // 请求参数
        ListProductsRequest listProductsRequest = new ListProductsRequest();
        // 设置条数
        listProductsRequest.setLimit(50);
        // 发起请求
        ListProductsResponse response = client.listProducts(listProductsRequest);
        if (response.getHttpStatusCode() != 200) {
            throw new BaseException("物联网接口 - 查询产品，同步失败");
        }
        // 存储到redis
        redisTemplate.opsForValue().set(Constants.IOT_ALL_PRODUCT_LIST, JSONUtil.toJsonStr(response.getProducts()));


    }


    /**
     * 查询所有产品列表
     *
     * @return
     */
    @Override
    public List<ProductVo> allProduct() {
        // 从redis中查询数据
        String jsonStr = redisTemplate.opsForValue().get(Constants.IOT_ALL_PRODUCT_LIST);
        // 如果数据为空，则返回一个空集合
        if (StringUtils.isEmpty(jsonStr)) {
            return Collections.emptyList();
        }
        // 解析数据，并返回
        return JSONUtil.toList(jsonStr, ProductVo.class);
    }


    /**
     * 注册设备
     *
     * @param dto
     */
    @Override
    public void registerDevice(DeviceDto dto) {
        // 判断设备名称是否存在
        long count = count(Wrappers.<Device>lambdaQuery().eq(Device::getDeviceName, dto.getDeviceName()));
        if (count > 0) {
            throw new BaseException("设备名称已存在，请重新输入");
        }

        // 判断设备标识是否存在
        count = count(Wrappers.<Device>lambdaQuery().eq(Device::getNodeId, dto.getNodeId()));
        if (count > 0) {
            throw new BaseException("设备标识码已存在，请重新输入");
        }

        // 判断同一位置是否绑定了相同的产品
        count = count(Wrappers.<Device>lambdaQuery()
                .eq(Device::getProductKey, dto.getProductKey())
                .eq(Device::getBindingLocation, dto.getBindingLocation())
                .eq(Device::getLocationType, dto.getLocationType())
                .eq(dto.getPhysicalLocationType() != null, Device::getPhysicalLocationType, dto.getPhysicalLocationType()));
        if (count > 0) {
            throw new BaseException("该老人/位置已绑定该产品，请重新选择");
        }

        // 注册设备--->IoT平台
        AddDeviceRequest request = new AddDeviceRequest();
        AddDevice body = new AddDevice();
        body.withProductId(dto.getProductKey());
        body.withDeviceName(dto.getDeviceName());
        body.withNodeId(dto.getNodeId());

        // 秘钥设置,因为数据库表中也需要该字段
        AuthInfo authInfo = new AuthInfo();
        String secret = UUID.randomUUID().toString().replaceAll("-", "");
        authInfo.withSecret(secret);
        body.setAuthInfo(authInfo);
        request.setBody(body);

        AddDeviceResponse response;
        try {
            response = client.addDevice(request);
        } catch (Exception e) {
            e.printStackTrace();
            throw new BaseException("物联网接口 - 注册设备，调用失败");
        }
        // 本地保存设备
        // 属性拷贝
        Device device = BeanUtil.toBean(dto, Device.class);
        // 秘钥
        device.setSecret(secret);
        // 设备id、设备绑定状态
        device.setIotId(response.getDeviceId());
        this.save(device);
    }


    /**
     * 查询设备详情
     *
     * @param iotId
     * @return
     */
    @Override
    public DeviceDetailVo queryDeviceDetail(String iotId) {
        // 查询本地设备数据
        Device device = getOne(Wrappers.<Device>lambdaQuery().eq(Device::getIotId, iotId));
        if (ObjectUtil.isEmpty(device)) {
            return null;
        }
        // 调用华为云接口查询设备详情
        ShowDeviceRequest request = new ShowDeviceRequest();
        request.setDeviceId(iotId);
        ShowDeviceResponse response;
        try {
            response = client.showDevice(request);
        } catch (Exception e) {
            throw new BaseException("物联网接口 - 查询设备详情，调用失败");
        }
        // 属性拷贝
        DeviceDetailVo deviceVo = BeanUtil.toBean(device, DeviceDetailVo.class);
        deviceVo.setDeviceStatus(response.getStatus());
        String activeTimeStr = response.getActiveTime();
        // 日期转换
        if (StringUtils.isNotEmpty(activeTimeStr)) {
            // 日期时区转换
            LocalDateTime activeTime = LocalDateTimeUtil.parse(activeTimeStr, DatePattern.UTC_MS_PATTERN);
            // 日期时区转换
            deviceVo.setActiveTime(DateTimeZoneConverter.utcToShanghai(activeTime));
        }

        return deviceVo;
    }


    /**
     * 查询设备上报数据
     *
     * @param iotId
     * @return
     */
    @Override
    public AjaxResult queryServiceProperties(String iotId) {
        ShowDeviceShadowRequest request = new ShowDeviceShadowRequest();
        request.setDeviceId(iotId);
        ShowDeviceShadowResponse response = client.showDeviceShadow(request);
        if (response.getHttpStatusCode() != 200) {
            throw new BaseException("物联网接口 - 查询设备影子，调用失败");
        }
        List<DeviceShadowData> shadow = response.getShadow();
        if (CollUtil.isEmpty(shadow)) {
            List<Object> emptyList = Collections.emptyList();
            return AjaxResult.success(emptyList);
        }
        // 获取上报数据的reported （参考返回的json数据）
        DeviceShadowProperties reported = shadow.get(0).getReported();
        // 把数据转换为JSONObject(map)，方便处理
        JSONObject jsonObject = JSONUtil.parseObj(reported.getProperties());
        // 遍历数据，封装到list中
        List<Map<String, Object>> list = new ArrayList<>();
        // 事件上报时间
        String eventTimeStr = reported.getEventTime();
        // 把字符串转换为LocalDateTime
        LocalDateTime eventTimeLocalDateTime = LocalDateTimeUtil.parse(eventTimeStr, "yyyyMMdd'T'HHmmss'Z'");
        // 时区转换
        LocalDateTime eventTime = DateTimeZoneConverter.utcToShanghai(eventTimeLocalDateTime);


        // k:属性标识，v:属性值
        jsonObject.forEach((k, v) -> {
            Map<String, Object> map = new HashMap<>();
            map.put("functionId", k);
            map.put("value", v);
            map.put("eventTime", eventTime);
            list.add(map);
        });

        // 数据返回
        return AjaxResult.success(list);
    }


    /**
     * 根据iotId修改设备
     *
     * @param deviceDto
     * @return
     */
    @Transactional
    @Override
    public AjaxResult updateByIotId(DeviceDto deviceDto) {
        //修改云平台上设备数据
        UpdateDeviceRequest request = new UpdateDeviceRequest();
        UpdateDevice body = new UpdateDevice();
        //修改设备名称
        body.withDeviceName(deviceDto.getDeviceName());
        request.setBody(body);
        request.setDeviceId(deviceDto.getIotId());
        UpdateDeviceResponse response;
        try {
            response = client.updateDevice(request);
        } catch (Exception e) {
            throw new BaseException("物联网接口 - 修改设备，调用失败");
        }
        // 修改本地数据库
        Device device = getOne(Wrappers.<Device>lambdaQuery().eq(Device::getIotId, deviceDto.getIotId()));
        if (ObjectUtil.isEmpty(device)) {
            return AjaxResult.error("设备不存在");
        }
        device.setDeviceName(deviceDto.getDeviceName());
        this.updateById(device);
        return AjaxResult.success(response);
    }


    /**
     * 根据iotId删除设备
     * @param iotId
     */
    @Transactional
    @Override
    public void removeByIotId(String iotId) {
        // 删除本地数据库
        this.remove(Wrappers.<Device>lambdaQuery().eq(Device::getIotId, iotId));
        // 删除云平台上设备数据
        DeleteDeviceRequest request = new DeleteDeviceRequest();
        request.setDeviceId(iotId);
        try {
            client.deleteDevice(request);
        } catch (Exception e) {
            throw new BaseException("物联网接口 - 删除设备，调用失败");
        }
    }
}
